Base rocking-chair



(Model.)

W. & R. lVIoCABB.

BASE ROGKING CHAIR.

llztentedv May 23, 1882.

WW. WW m m [nue/Zivi@ y .UNrTeD STATES Arana erica.

BASE RoCKlNe-CHAIR.

SPECIFICATION forming part of Letters Patent No. 258,239, dated May 23, 1882.

Application filed January 17, 1882, (Model.)

To all whom tt may concern:

Be it known that weW1LLtAM MoGABE and ROBERT MCGABE, citizens ot' the United States, residing at the city of Meadville, in the county of Crawford and State of Pennsylvania, have invented a new and useful Base Rocking-Chair, of which the following is a specification.

Onrinvention relates to improvements in rocking-chairs77 whose rockers seton a base and are attached thereto in a secure manner, and lyet so constructed that they will roel: freely on their base without noise or friction. We attain this object by the mechanism illustrated in the accompanying drawings, in which- Figure 1 is a back View, and Fig. 2 a seetional side view, of our rockingchair.

E, Figs. l and 2, represents the base, constructed in the usual form of bases of rockers.

F is a strong bar of wood that connects the back ends of the sides of the base together; R, arung that connects the front ends together. On the bar F are two semicirenlar springs, of hat steel or other suitable metal, secured firmly thereto by screws or screwbolts, (sce Fig. 2,) which shows one of them,

4there being another like it on the other side of the chair.

O is a bar of wood or metal attached to the upper part of the spring by screws or bolts, with a notch in the underside of the end thereof to hooker drop on apin, P'. This pin P is attached to the rocker B, which rests ou the base E, and thereby prevents the rocker B from having a lateral motion on the base when in use.

H is an arm of metal screwed on the rocher B, and projecting down toward the door inside of the sides of the base, as shown in the drawings, Fig. 2. This arm has ahookA on its lower end, which stops7 against a pin, S, when the rocker is tipped back as far asit is desired to have it. The piu P is attached to this arm, as shown in the drawings.

In the construction of a chair in such a manner as to permit it to rock freely and at the same time to prevent any lateral or sliding motion onthe base, it is found necessary to have the bar 0 attached to the spring made of some rigid materiaL-that is, it is found by.

experiment that it would not do to extend the semicircular spring itself forward to hook on the pin l", as it would bend its whole length, causing the rocker toslide on the base. This difficulty is obviated by having the bar O of rigid material and attached to the semicireular spring G. This allows the chair to rock freely without any friction or lateral motion. The dotted line in the drawings shows the position of the spring G, hook H, and har O when the chair is rocked or tipped back as far as desired.

C is the front of the frame of the seat, D the arm, and A the side ot' the chair-frame.

1. In a base rocking-chair, aspringattached to the base and projecting forward and pro vided with an inelastic arm havingaslot therein, in combination with a rocking seat having arranged substantially as described.

WM. Macnee. [1.. s. Roer. Moonen. las.

Witnesses:

H. M. RrenMoND, A. B. RleHMoND. 

